Adding machine



W.1.PAS1NSK|. ADDING MACHlNE. APPLICATION man ocr. 1. |915.

1,391,072. Pandsepn 20,1921.

2 SHEETS-SHEE l.

W. J. 9ASINSKI.

AnolNG MACHINE.

APPLICATION FLEO OCT. HHS.

Patented Sept. 20, 1921.

2 SHEU S-SHEI 2.

MVM@ M UNITEDr STATES PATENT OFFECE.

WALTER J. PASINSKI, OF DETROIT, MICHIGAN, ASSIGNOR TO BURROUGHS ADDINGMACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

ADDING-MACHINE.

To all whom it may concern:

Be it known that I, WALTER J. PAsINsnl, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Im rovements in Adding-Machines, ofwhich t e following is a description, reference being hadito theaccompanying drawin s, forming part of this. specification.

y present invention' relates to adding machines of the general typedisclosed in my prior Patent No. 1,023,168 of April 16, 1912, and theHorton Patent No. 1,016,501 of February 6, 1912; and consists mainly ina novel construction, combination and arrangement of parts whereby thelength of the columnactuators or operatin levers of the machine may bemateria y reduced, and the machine as a whole he correspondinglyshortened up, as compared with prior machines of this class, withoutdecreasing the range of movement of such actuators or levers orinterfering with the accurate and satisfactory operation of suchmachines as heretofore constructed. This I accomplish by mounting eachof said actuators or levers upon a vertically movable pivot or fulcrumand causing said fulcrum to be depressed with the lever as the latter isrocked upon such fulcrum by the operations of the keys of the machine,as hereinafter described.

In the accompanying drawings, Figure 1 is a vertical section of amachine embodying my invention, showing the operating parts of themachine in elevation; and Fig. 2 a corresponding view with one of theoperating keys depressed to its limit of moyement. The same letters ofreference are used to indicate corresponding parts in both views.

Inasmuch as the general construction and mode of operation of machinesof this type is disclosed in the patents heretofore referred to, as wellas in various prior patents, the present specification will be confinedto a description of the novel features of construction and operationconstituting my present invention.

Heretofore, in machines of this class, the column-actuators or operatinglevers of the machine have usually been pivoted or fulcrumed upon afixed rod or support at the extreme rear end of the machine, somedistance in the rear of the-keyboard of the machine, and have extendedthence to the forward part of the machine where they co- Specication ofLetters Patent.

Patented Sept. 20, 1921.

operate with the accumulating mechanism. ln prior constructions, havingthe operating levers so mounted, it has been necessary to employ leversof such extreme length, relatively to the length of the machine as awhole, in order to provide the desired range of movement for the frontends of the levers, for their proper cooperation with the operatingVkeys and the accumulating mechamsm, and the result has been that themachine as a whole has had to be made of considerably greater lengththan was necessary for the accommodation of the other mechanisms of themachine. This necessity is entirely overcome by my present invention,which permits the levers in question to be made of approximately thesame length as the keyboard of the machine, and the latter to becorrespondingly shortened up and reduced in size, as will now beexplained.

In the construction disclosed in the drawings, each column-actuator oroperating lever A is pivotally supported or fulcrumed at its rear end,at a, upon one arm of a bellcrank lever B which is mounted upon a fixedcross rod C supported in the framework of the machine. Near its forwardend the lever A has a slot-and-pin connection, at l, with one arm of abell-crank lever D which is mounted upon a fixed cross rod E supportedin the framework of the machine. The u wardl and forwardly extendingarms, and of the bell-crank levers B and D, are connected by a link orbar F, which in the present instance constitutes a stop-bar for limitingthe movements of the parts under the operations of the different keys,as hereinafter described. The forn'ard bell-crank to whose arm D thefront end of the bar F is connected carries the gear-toothed sector orrack G which meshes with the pinion H ofthe accumulating mechanism, anda coiled spring l connecting the rear end of the lever A and bell-crankB with a cross rod c at the top of the machine serves to yieldingly holdthe parts in and return them to their normal position. Each of thelevers A is provided with a segmental slot (l for the accommodation ofthe cross-rod C, said rod extending transversely across the machinethrough the slots d of all of the levers A.

The operating keys J of the machine, which are arranged in the usualdenominational rows extending from the front to rear of the keyboard,are provided immediately above the lever A with laterally extending lugsf which overlie the upper edge of the lever A and serve to depress thelatter when the keys are depressed. The reduced lower ends ol' (he keysJ are surrounded by coiled resetting springs 1r/ confined between theshoulders formed upon the keys et the upper ends of such reducedportions and the horizontal frame-plate /iy through which the lower endsof the keys pass and in which they are guided.

Under the foregoing construction and arrangement of parts, when any keyin any one of the denominational rows of keys is depressed, :is in thecase of the -lrev in Fig. 2, its lug f will contact with the upperedgeof the lever A and depressthe front end of the latter, rocking itupon its pivotal support or fulcrurn a :Lt its rear end. Such downwardmovement of the front end of the-llever'A will be communicated, throughthe bell-crank D, D', and link or bar F to the Ybell-crank B, "B, withthe result that the latter will be rocked upon its fulcrurn C and thepivotal support or fulcrum o, of the 'lever A be lowered. Theproportions of the parts are such, in the present instance. that suchpivotal support or ulcrum of the lever A will be lowered to such anextent` relatively to the depression of the front end of the lever, etthe operatoniof any key, lthat the lever will be given substantially thesame movement as a whole as it would be if it were extended rearward ofthe keyboard of the'maehine and supported at its rear end upon a fixedfulcrum or pivot A as in the machinesof the prior patents beretoforereferred to. The mountings of the lever A upon n. vertically movablesupport or fulcrum, in the manner described, there fore enables thelever to be very materially shortened. as com-pared with the necessarylength of the levers in the prior constructions referred to, whilepreservingr snbstalntially the same movement of the portion of the leverwhich underlies ihe kevboard of the marhine and is directly acted upon bv the operating keys.

The depression of the lever A :1nd the roekinpr of the bell-cranks` inthe manner described` will of course put the spring l under inrreasedtension. and when the operated key is released said spring will restorethe parts to normal position. The gear-toothed sector (l will bereciprocated buck and forth at each of such operations. to an extentdetermined by the particular key operated, and serve to transmit themovement of the parts to the accunnilatinry mechanism, to add the valueof the operated key upon it. The accumulating mechanism of the machinemay be of any suitable eher acter, that illustrated or indicated in thedrawings elnbmlyintgT a ratchet-aiid-paul and gear connection betweenthe pinions ll which mesh with the sectors G and the numeralfwheels Hf,under which the latter are advanced at the return movement of the partsin accordance with the values of the operated keys.

#lo far as the operation above described is concerned, the link or bar Fmight consist of a simple linlrconnectingl the vertical arms of the twobell cranks, but in the present instance it also ser-ves as a stop-harto positively limitvthe movements of the parts under the operations` ofthe several keys, to which enditis provided with a series of rearwardlyfacing shoulders-z' adapted toco operate with lu'gs j projectinglaterally from the si'deswof thef key-stems slightly below the top4plate-ofthe easing of the machine. The adjustment-and relation of theparts aresuchf-thatvihen any key is depressed to its limit of vmovementthe corresponding shoulder lnponthe bzlrlF will, in the rearwar'dmovement of saidwb'ar, contact with the orvvairdfside4 of thelug j uponthe said key,fimd the latter will-.actas a stop to arrest=the movementof the bar F and the parts counectedfwvith: it, as fin the instance ofthe depression ofthe -key shown in Fig. 2.

lclaim:

. l. 'In' a calculzitingmachine, an approximately horizontal.c.olumn-actuator or lever mounted'n'trone end upon a vertically movable4fulerum, in combination with means for moving said fulcr'umsimultaneously with movement of the -lever upon said fulcrum:

2.'In n culcula-ting'muchine, a column actuator or lever mounted at oneend upon a vertically movable fulcrum, in combination with means formo'vinpr said fulcrurn vertically when the opposite end of the level isswung.: in a vertical plane upon said fulA crum.

3. ln u, calculating machine, a `columnartnutor or lever having a4vertically Inovable fulcruln, in combination with means for causinprthel movement of'the lever upon its fulcrul'n to move seid 'fulerumvertically.

4. Tn a-ealeula'ting machine, the combina tion of a column-actuator orlever 'fuk-ruined at one end upon a vertically movable support` andconnections between the opposite end of said lever and Said support forcausing `the latter to be moved vertically when the lever is rocked uponits fulcrurn.

5. ln a calculating,r machine, the combination of u column-actuator orlevel' fu-lcrumed at one end upon a Swingin;r arm, and rounectionsbetween the opposite `end of said lever and said arm for causing therocking of the lever upon its fulcrum to swing said arm :rnd lower andraise the fulcruin of the lever.

(i. In a calculating machine, the combination of :i column-actuator orlever, il belt llo lill) rocking of said lever upon naamw crank upon oneof whose arms said lever is pivotally supported at one end, andconnections between the opposite end of the lever and the other arm ofthe bell-crank for causing movement of the lever upon its fulcrum torock said bell-crank and lower and raise said fulcruxn.'

7. In a calculating machine, the combination or'V a column-actuator orlever, a bellcrank upon one of whose arms said lever is fulcrumed at oneend, a second bell crank at the opposite end of the lever, to one ofwhose arms the lever is connected, and a link connecting the other twoarms of the bellcranks.

8. In a calculating machine, the combination of a column-actuator orlever, a bell crank upon one of whose arms said lever is fulcrumed atone e`nd, a gear-toothed sector at the opposite 'end of said lever, andalink connecting said sector with the other arm of the bell crank. '4

9. In a calculating machine, thev combination ofV a column-actuator `orlever, 'a bell crank -upon one of whose arms `said lever is fulcrumed atone end, a bell crank at the opposite end of said lever, to one of whosearms said lever` is connected at said end, a. gear-toothed sectorcarried by said bell crank, and a link connectingthe other two arms ofthe bell cranks. f

10. In a calculatingmac'hine, the'combination, with a denominationalrow'ofkeys, of a c'olumn-actuatonor lever extending longitudinally ofsaid row of' keys and supported at one end thereof upon a verticallymovable ulcrum, and means for causin the depression of any key to rocksaid Iever upon its ulcrum and also depress said fulcruxn.

11. In a. calculatin' machine, the combination with a denominational rowof 'keys` of a'column-actuator or lever extending longitudinally of saidrow ofkeys and mounted at one end thereof upon a vertically movableulerum, and means for causing the its ulcrum, at the depression of anykey, to depress said fulcrum.

12. In a calculating machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and mounted at one end thereof upon a vertically movableiulcrum, and a connection between the opposite end of said lever andsaid fulcrum for causing the rocking ofthe lever upon its fulcrum, bythe depression of any key, to depress said ulcrum.

13. In a calculatin machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys, a bell-crank at one end ofsaid row of keys, upon one ofWhose arms said lever is ulcrumed, and a connection between the oppositeend o'f said lever and the other arm of said bell crank for causing therocking of the lever upon its fulcrum, upon the depression of any key,to rock said bell crank and lower the fulcrum of the lever.

14. In a calculating machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depression of any one ofsaid keys, a bell-crank at one end thereof,

upon one' of whose arms said lever is fulcrumed, a second bell-crank atthe opposite end of said lever, to one of whose arms said end of thelever is connected, and a link connecting the other arms of the two bellcranks.

' 15. In a calculating machine, the combination, with a denominationalrow of keys, of a column-actuatoror lever extending longitudinally ofsaid row of keys and adapted to be 4depressed by the depression of anyone of said keys, a reciprocating bar or link also extendinglongitudinally of said row of keys, a gear-toothed sector connected withone end of said bar or link for transmitting its movements to an addingmechanism, and a bell-crank supporting the opposite end of said bar orlink and Vso connected with the column-actuator as to cause thedepression of the latter to rock the bell-crank and reciprocate the baror link.

16. 'In a calculating machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depression of any one ofsaid keys, a reciprocating link or bar also extending longitudinally ofthe row of keys, a gear-toothed sector connected with one end of saidbar and operating to transmit its movements to an adding mechanism` anda bell-crank lever interposed between the opposite end of the bar andthe column-actuator and having the end of the bar supported upon itsvertical arm and the column-actuator fulcrumed upon its horizontal arm,whereby depression of the column-actuator by the keys serves to rock thebell-crank upon its fulcrnm and thereby depress the fnlcruni of thecolumn-actuator and also reciprocate the bar connecting the bell-crankwith the gear-toothed sector.

17. In a calculating machine. the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depressing,r of any oneof said kays, a reciprocating link or bar also extending longitudinallyof the row of keys, a gear-toothed sector connected to one end of saidbar and operating to transmit its movement to an adding mechanism, abell-crank interposed between the opposite end of the har and thccolnum-actuator, the bar being su1 )ported upon the vertical arm of thebellcrank and the colunin-actnamr heilig fulcrnnied Upon its horizontalarm, and a connection llctwern the opposite end of the co1- umn-actuatorand the reciprocating bar, whereby depression of the column-actuator bythe keys serves to rock the bell-crank upon its fnlcrum and therebydepress the fulcrum of the column-actuator and also reciprocate the barconnecting the bell-crank with the gear-toothed sector.

1S. In a calculating machine, the combination with a denominational rowoi keys, of a colnmiructuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depression of any one ofthem, a reciprocating link or bar also4 extending longitudinally of therow of keys, a. pair of bell-cranks interposed between the opposite endsof the column-actuator and reciprocating bar, the opposite ends of thebar being,lr supported upon the vertical arms of the bell-cranks and theopposite ends of the column-actuator being supported upon the horizontalarms of the bell-cranks, and a gear-toothed sector carried by theforward hell-crank and operating to transmit its movements to anaddingmechanism.

19. In a calculating machine, the combina.- tion with a denominationalrow of keys, of a column'aotuator or lever extending longitudinally ofsaid row of keys and adapted to be depressed by the depression of anyone of said keys, a reciprocating stop-bar also extending longitudinallyof said row of keys and provided with a series of stop-shoulderscooperating with the respective keys, a geartoothed sector connectedwith one end of the reciprocating stop har and operating to transmit themovements of the latter to an adding mechanism, and connections betweenthe column-actuator and stop-bar independent of said sector for causingthe depression of the column-actuator to reciprocate the stop-har.

20. In a calculating machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depression of any one ofsaid keys, a reciprocating stop-bar also extending longitudinall)J ofsaid row of keys and provided with a series of stop-shoulderscooperating with the respective keys, a geartoothed sector connectedwith one end of said stop-bar and opera ting to transmit its move mentsto an addinglr mechanism, and a bellcrank supportilngr the opposite endof said stop-bar and so connected With the columnactuator as to causethe depression of the latter to rock the bell-crank uponrits fnlcrum andreciprocate the stop-bar.

21. In a calculating machine, the combination with n denomination row ofkeys, of a column-actuator or lever extending longi tudinally of saidrow of keys and adapted to be depressed by the depression of any one ofsaid keys, a reciprocating stop-bar also eX tending longitudinallyoffsaid Vrovv ofvkeys and provided with a seriesl o fstop-shoulderscooperating with the respective keys,ga.geartoothed sector 4connectedwithrone end 'of said stop-bar and operating ito transmit its movementsto an adding 'meohanism, and a pair of bell cranks supporting theopposite endsof the stop-.bar and so connected With the column-actuatoras bo cause the depression oftlre latter to rock the bell-cranks andreciprocate the stop-bar.

22. In ay calculating machine, the ycombination with adenominational,row of keys, of .a collimnactuator or` lever .extending 4longitudinallythereof, ai bell crank mounted at one end thereof, upon one -of whosearms said lever is fulcrumed at one end, a reciprocating link or barconnected fto-theotheri arm of said-bell crank, means forf;:;a,|.lsirr`g 'the depressionlof any .key Jto rockrthe lever andbellfcrank upon ltheir respective supports, and a series ofstopshoulders uponA the link orbar eoperating with projections upon the irespective keys-to limitthe' movementof `the 1partsV under. the,operationsfof the .diferent eys.- l 23. In a calculating machine,-tbe`combi-- nation with -a 5denominational -row of keys, ofaicolumn-,actuatorA or lever extending longitudinally v,thereof andadapted to he depressed by the depression 'of any oneo'f said keys, areciprocating stop-bar extending lon gitudinally ofsaid row of keys-andprovided with a series of stop-shoulderscooperating with the respectivekeys, a .gear-toothed sector connected with one end of said stopbar andoperating 'to transmit its movements to an adding mechanism, and abell-crank interposed between the opposite end of the stopfbar and-the'column-actuator, the stopbar-beingsupported by thevertical arm ofsaid bell-crank :and the column actuator bewhereby depression. of thecolumn-actuator by the keys serves to rock said bell-crank and depressits fulcrum, and also reciprocates the stop-bar and causes thegear-toothed sector to transmit its movements to the adding mechanism.

24. In a calculating machine, the combination with a denominational row,of keys, a column-actuator or lever extending longitudinally thereof andadapted Ato be depressed by the depression of any key in the row, abell-crank at one end thereof, upon one of whose arms said lever isfulcrumed at one end, a second bell-crank at Ithe opposite end of saidlever, to one of Whose arms said lever yis connected, a link or barconnecting the-other two arms of the bell-A cranks, and a series of stopshoulders upon ing fulcrumed upon its horizontal arm,`

said bar cooperating with projections upon the keys to limit themovement of the parts under the operations of the different keys.

25. In a calculating machine, the combination with a denominational rowof keys, of a column-actuator or lever extending longitudinally of saidrow of keys and adapted to be depressed by the depression of any one ofsaid keys, a reciprocating stop-bar also extending longitudinally ofsaid row of keys and provided with a series of stopshoulders coperatingwith the respective keys, a pair of bell-cranks interposed between theopposite ends of the stop-bar and columnactuator.J the bar beingsupported upon the vertical arms o the bell-cranks and thecolumn-actuator being supported upon their horizontal arms, and agear-toothed sector carried by the forward bell-crank and operating totransmit its movements to an adding mechanism.

WALTER J. PASINSKI.

Witnesses z R. S. MIELERT, J. A, BnoPHY.

